Boar Spear What Sort Of Red Tape Is Involved With Hunting Boar In Germany, W/ Spear?

What sort of red tape is involved with hunting boar in Germany, w/ spear? - boar spear

I know it's a significant amount of bureaucracy involved in something in Germany, with firearms and / or hunting, but what kind of paper I (U.S. citizens) have to go hunting wild boar with a lance? It is possible, I am in Germany this summer and one of my friends in Belgium has expressed an interest to go boar hunting with spears at a certain point.